/Engine/Plugins/NetcodeUnitTest/NetcodeUnitTest/Source/NetcodeUnitTest/Classes/UnitTestManager.h
When the main status window is closed, a dialog pops up asking if you want to abort all running unit tests; this returns the result
void NotifyCloseAllDialogResult ( const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWindow](API\Runtime\SlateCore\Widgets\SWindow) > & DialogWindow, [EAppReturnType::Type](API\Runtime\Core\GenericPlatform\EAppReturnType__Type) Result, bool bNoResult )